Duplicating content on multiple domains

[blahblahblah2015]

Hey guys,

I've started working with a new client recently called Resource Investing News. I'm more a Social Media person, though I do have SEO experience.

RIN has about 40 URLs all of which have original news content published on them. One SEO-related issue that I can see here though is that the primary domain re-publishes all of the original content that the other URLs do.

In other words:

resourceinvestingnews.com will have an article on it that is also published on goldinvestingnews.com with the same date stamp and a link out to the original article.

E.g.

http://resourceinvestingnews.com/42539-molybdenum-goes-far-beyond-steelmaking.html

http://molyinvestingnews.com/5301-molybdenum-steelmaking-vehicle-demand-electronics-lubricant.html

Does anyone have an idea if this is something that should be reviewed and/or whether the content is being negatively affected in search?

Many thanks!

[JHSpecialty]

Google should recognize the original source and give credit due.

[blahblahblah2015]

Even though they're published at the same time?

[TheSEODR]

JH is right - Google should already recognize the original source. You could include a rel=canonical tag pointing to the original source to be safe - probably unnecessary though.

[rtmaas]

Derek is right on it. You should implement a cross domain canonical tag. In fact, here is a Whiteboard Friday where Rand talks about your exact situation.

http://www.seomoz.org/blog/cross-domain-canonical-the-new-301-whiteboard-friday

Hope that helps!

Ryan

[EGOL]

Google should recognize the original source and give credit due.

Not true.  The domain with the highest authority often outranks the original source.